HANGLIFE Heat-Set Threaded Inserts, M3 Heat Set Insert for 3D Printing Components and Plastic Parts - Brass Metric Knurled Nuts (100 Pieces)

These work perfectly for 3D prints that require bolts. They sink right into the part and make any print look professional.

There are multiple options to choose from for heat inserts, which are indispensable for anyone who's serious about 3D printing. The quality varies tremendously, so does the price. However, this set checks all the boxes.I waited a bit with the review to test more than 1-2 of them and wow... these are definitely landing on my favorite list! After using over a dozen of them I can confidently say these are great. The thread quality is very good, the dimensional accuracy on the outside is within 0.05mm tolerance, and the brass has no sharp edges on it. They may not be the cheapest set, but the QUALITY is DEFINITELY worth the premium.In addition to being good quality, the ostensibly small touch of including the dimensions and a BIG picture on the packaging makes it extremely easy to identify them in a shop. I no longer need to make a custom label.... these are small things that make using the product way easier. This is my first set of the heat-set inserts from Hanglife, but for sure not the last one!

Used for inserting into 3d prints. Had no issues and worked fine. Very easy to use and cheap. I used 300c on temperature for petg.

Great heat inserts. I have nearly used up this container and have had zero issues.

I recently got the HANGLIFE M2 heat-set threaded inserts, and they are just what I needed for my 3D printing projects! The quality is top-notch—these brass inserts are sturdy and durable, ensuring they won't break or deform easily.The installation process is straightforward: just heat them up and insert them into the tapered holes. Once the plastic cools, they hold firmly in place, giving me confidence in my designs.With their smooth, knurled surface and no burrs, they fit perfectly in my prints. Plus, they're compatible with various thermoplastics, making them versatile for different applications. I'm very satisfied with this purchase—definitely recommend these inserts for anyone looking to enhance their 3D printing experience!

I bought this so that I'd have a nice "Assortment" of inserts for various future products. But there's nothing included to tell how to size the hole for each insert! I also separately purchased a package of additional M4 x 6 x 6 inserts, and that shows the actual specs - suggested width 5.31-5.35mm, minimum depth 7.0mm, minimum wall thickness 2.1mm. I'd never have known ANY of that without purchasing a separate set.

All the hanglife heat-set inserts I've bought have been high quality. No issues with any of them.

Work great!